Alert archive / Iowa / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 39, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 5, 2014, 2:50 PM CDT for Plymouth County, Iowa. It was in force for 21 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 5, 2014, 2:50 PM CDT (19:50 UTC)
- Expired
- Jun 5, 2014, 3:11 PM CDT
- In force
- 21 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County Plymouth County, IA
The radar
The Sioux Falls radar (KFSD), 104 km from the middle of the area, began a volume at 19:52 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 5, 2:55 PM CDT | HAIL 1 | 2 W Le Mars, IA | 60 MPH WINDS, BROKE A FEW BRANCHES |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 7.8 hours before the alert went out and 161 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 446 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 593 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
148 WUUS53 KFSD 051950 SVRFSD IAC149-052030- /O.NEW.KFSD.SV.W.0039.140605T1950Z-140605T2030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 250 PM CDT THU JUN 5 2014 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN PLYMOUTH COUNTY IN NORTHWEST IOWA... * UNTIL 330 PM CDT * AT 247 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR LE MARS... AND MOVING EAST AT 25 MPH. HAZARD...QUARTER SIZE HAIL. SOURCE...RADAR INDICATED. IMPACT...DAMAGE TO VEHICLES IS EXPECTED. * LOCATIONS IMPACTED INCLUDE... LE MARS...REMSEN AND OYENS. PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. INTENSE THUNDERSTORMS CAN SOMETIMES PRODUCE BRIEF TORNADOES AND WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH A TORNADO IS NOT IMMEDIATELY LIKELY...IT IS BEST TO MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. THIS STORM MAY CAUSE SERIOUS INJURY AND SIGNIFICANT PROPERTY DAMAGE. && LAT...LON 4274 9637 4291 9629 4282 9586 4258 9586 TIME...MOT...LOC 1950Z 289DEG 20KT 4279 9621 HAIL...1.00IN WIND...<50MPH $$
2 follow-up statements
326 WWUS53 KFSD 052002 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 302 PM CDT THU JUN 5 2014 IAC149-052030- /O.CON.KFSD.SV.W.0039.000000T0000Z-140605T2030Z/ PLYMOUTH IA- 302 PM CDT THU JUN 5 2014 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN PLYMOUTH COUNTY UNTIL 330 PM CDT... AT 300 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR LE MARS...AND MOVING EAST AT 25 MPH. HAZARD...QUARTER SIZE HAIL. SOURCE...RADAR INDICATED. IMPACT...DAMAGE TO VEHICLES IS EXPECTED. LOCATIONS IMPACTED INCLUDE... REMSEN AND OYENS. PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. && LAT...LON 4274 9637 4291 9629 4282 9586 4258 9586 TIME...MOT...LOC 2002Z 289DEG 20KT 4277 9612 HAIL...1.00IN WIND...<50MPH $$ BT
142 WWUS53 KFSD 052011 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 311 PM CDT THU JUN 5 2014 IAC149-052020- /O.CAN.KFSD.SV.W.0039.000000T0000Z-140605T2030Z/ PLYMOUTH IA- 311 PM CDT THU JUN 5 2014 ...THE SEVERE THUNDERSTORM WARNING FOR EASTERN PLYMOUTH COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. HOWEVER...SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM. LAT...LON 4274 9637 4291 9629 4282 9586 4258 9586 TIME...MOT...LOC 2010Z 289DEG 20KT 4275 9606 $$
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 3:32 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 43 min |
| Jun 5, 4:03 PM CDT | Tornado Warning | FSD | Lyon, Sioux | 42 min |
| Jun 5, 4:06 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 39 min |
| Jun 5, 4:38 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 52 min |
| Jun 5, 4:40 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 20 min |
| Jun 5, 5:16 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 44 min |
| Jun 5, 5:46 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola | 19 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2014Every severe thunderstorm warning in 2014
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.